Access/Usage of Multiple Collections withing one Langchain Vector Store

[SalehAhmad1]

Checked

• I searched existing ideas and did not find a similar one
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• I've clearly described the feature request and motivation for it

Feature request

Multi Collection Vector Stores

1. Concurrent access to multiple collections within the same Vector Store object.
2. No need for separate pairs of clients/vector store objects for every collection. 1 client and 1 vector store should handle all collections.

Motivation

I was working on a project, where I was using weaviate as my Vector Store. I had to use 4 different collections for the project, but when integrated into Langchain, I had to create custom wrappers that did this job.

Proposal (If applicable)

Add/edit the vector store functions or create a separate codebase/class object for multi-collection-vector stores. THe users should be able to chose which collection to use/choose from but have access to all within the same code regardless of if they are using a router or manual selection.